What are the factors that led to the fall of the roman empire?

Christianity loss  and the rise of EASTERN Empire

Explanation:

1) Invasions by Barbarian tribes.

2) Economic troubles and overreliance on slave labor.

3) The rise of the Eastern Empire.

4) Overexpansion and military overspending.

5) Government corruption and political instability.

6) The arrival of the Huns and the migration of the Barbarian tribes.

7) Christianity and the loss of traditional values.

can you post options?

8 - (2a + 7) = a + 40     distribute/multiply - into (2a + 7)

8 - 2a - 7 = a + 40

1 - 2a = a + 40       add 2a on both sides

1 = 3a + 40         subtract 40 on both sides

-39 = 3a       divide 3 on both sides

-13 = a

[proof]

8 - (2a + 7) = a + 40

8 - (2(-13) + 7) = -13 + 40

8 - (-26 + 7) = 27

8 - (-19) = 27

8 + 19 = 27

27 = 27